BOTH INTERNATIONAL & INLAND You are in restricted visibility and hear a fog signal forward of the beam. Nothing appears on your radar screen. The Rules require which action to be taken?

Correct Answer: Option D — slow to bare steerageway

Rule 19(e) requires that a vessel which detects the presence of another vessel by radar alone, or hears a fog signal forward of the beam, must reduce speed to the bare steerageway. If necessary, the vessel must take all way off and navigate with extreme caution until danger passes.